4 200 lb Swing Check ValveThe 4 200 lb Swing Check Valve is a heavy duty backflow prevention valve designed for high pressure fluid systems. This valve is commonly used in water, oil, gas, steam, and industrial applications where preventing reverse flow is critical. The swing style disc mechanism allows forward flow and automatically closes when flow reverses, ensuring smooth operation with minimal pressure loss. Specification Details TYPE Swing Check Valve DESIGN Swing Check